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Archived

Avalanche Forecast

Mar 4th, 2025–Mar 5th, 2025
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Babine, Hudson Bay, Microwave-Sinclair, North Bulkley, South Bulkley, Telkwa.

Uncertainty exists over ongoing reactivity of buried weak layers.

Minimize your exposure to avalanche terrain and overhead hazard.

Confidence

Moderate

Avalanche Summary

Over the weekend, small slabs were triggered within the storm snow. On Monday, explosive control work in the Bulkley produced widely propagating slab avalanches to size 3, some of which involved the variety of buried weak layers.

Looking forward, human triggering of wind affected snow and persistent weak layers remains possible.

Snowpack Summary

Recent storm snow has been wind affected in exposed terrain. South-facing slopes and low elevations hold a surface crust.

Facets, surface hoar (in sheltered terrain), and a crust on solar aspects that all formed during the February drought, are buried around 30 to 50 cm deep.

Deeper in the snowpack, a weak layer of facets and a crust from early December can be found. This layer appears to be dormant but remains an isolated concern in this region.

Check out this MIN from Hankin, with a great summary of snowpack conditions on the weekend.

Weather Summary

Tuesday Night

Partly cloudy. 10 to 20 km/h southeast ridgetop wind. Freezing level 1000 m.

Wednesday

A mix of sun and cloud. 20 to 30 km/h west ridgetop wind. Treeline temperatures -1 °C. Freezing level 1300 m.

Thursday

A mix of sun and cloud. 30 to 40 km/h southwest ridgetop wind. Treeline temperatures -2 °C. Freezing level 1200 m.

Friday

5 cm of snow overnight.

Cloudy with up to 10 cm of snow/rain. 60 to 80 km/h southwest ridgetop wind. Treeline temperatures +1 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Cornice failures could trigger large and destructive avalanches.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

Avalanche Problems

Persistent Slabs

Buried persistent weak layers remain possible to trigger. Warm temperatures and sunshine may increase reactivity on south facing slopes.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5

Wind Slabs

Wind slabs may linger near ridge crests and rollovers. Recent winds have switched from east to southwest, so watch for slabs on all aspects and expect locally variable conditions.

Aspects: North, North East, East, West, North West.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2